Fix onnx ints (#19102)
Summary:
If JIT constant propagation doesn't work, we have to handle the ListConstructor in symbolic.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/19102
Reviewed By: zrphercule
Differential Revision: D14875588
Pulled By: houseroad
fbshipit-source-id: d25c847d224d2d32db50aae1751100080e115022
